CN203119451U - Novel motor open-phase protecting device - Google Patents
Novel motor open-phase protecting device Download PDFInfo
- Publication number
- CN203119451U CN203119451U CN 201320036939 CN201320036939U CN203119451U CN 203119451 U CN203119451 U CN 203119451U CN 201320036939 CN201320036939 CN 201320036939 CN 201320036939 U CN201320036939 U CN 201320036939U CN 203119451 U CN203119451 U CN 203119451U
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- circuit
- current signal
- microprocessor control
- control circuit
- novel motor
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Abstract
The utility model relates to a novel motor open-phase protecting device, which comprises a current signal acquisition circuit and a microprocessor control circuit. The output signals of the current signal acquisition circuit are transmitted to the microprocessor control circuit through a current signal processing circuit. The output signals of the microprocessor control circuit are transmitted to a ZigBee wireless circuit and a drive circuit. The output signals of the ZigBee wireless circuit are sent to a data processing center. The novel motor open-phase protecting device adopts current sensors to acquire three-phase currents. After a single-chip microcomputer makes judgment, alarm signals are sent to an on-duty host through a ZigBee wireless module. Meanwhile, the power supply of a motor is cut off. The motor is then prevented from being burnt out due to an open-phase factor. The novel motor open-phase protecting device has the advantages of simple networking alarm, low cost and wireless monitoring, etc.
Description
Technical field
The utility model relates to a kind of protective device, particularly be a kind of novel motor phase-lacking protective device.
Background technology
Could run well under the situation that threephase motor has only three-phase equilibrium to power, otherwise will damage motor, cause very serious loss.
The utility model content
The purpose of this utility model is to provide a kind of novel motor phase-lacking protective device.
The technical scheme that its technical problem that solves the utility model adopts is: the novel motor phase-lacking protective device; comprise current signal Acquisition Circuit and microprocessor control circuit; the output signal of described current signal Acquisition Circuit transfers to microprocessor control circuit through the current signal treatment circuit; the output signal of described microprocessor control circuit is sent to ZigBee radio-circuit and drive circuit, and the output signal of described ZigBee radio-circuit sends to data processing centre.
Preferably, described current signal Acquisition Circuit adopts current sensor L1, the L2, the L3 that connect threephase motor to gather current signal.
Preferably, described microprocessor control circuit is current signal rectification, filtering, the signal processing circuit that diode VD1-VD3, resistance R 1-R3, capacitor C 1-C3 constitute.
Preferably, described microprocessor control circuit adopts 2051 single-chip microcomputer IC1.
Preferably, described ZigBee radio-circuit adopts ZM2410 radio receiving transmitting module IC2.
By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: the utility model adopts current sensor to gather three-phase current, after single-chip microcomputer is judged, send alarm signal by the ZigBee wireless module to main frame on duty, cut off motor power simultaneously, avoid because phase shortage burns out motor, have simple, the advantages such as cost is low, wireless monitor of networking warning.
Description of drawings
Fig. 1 is frame assumption diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Further specify the utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2; motor phase failure protection device of the present utility model; comprise current signal Acquisition Circuit 1 and microprocessor control circuit 2; the output signal of described current signal Acquisition Circuit 1 transfers to microprocessor control circuit 2 through current signal treatment circuit 11; the output signal of described microprocessor control circuit 2 is sent to ZigBee radio-circuit 21 and drive circuit 22, and the output signal of described ZigBee radio-circuit 21 sends to data processing centre 211.
Described current signal Acquisition Circuit 1 adopts the current sensor L1 that connects threephase motor, L2, L3 gathers current signal, described microprocessor control circuit 2 is diode VD1-VD3, resistance R 1-R3, the current signal rectification that capacitor C 1-C3 constitutes, filtering, signal processing circuit, when motor in when operation, current sensor L1, L2, L3 is output voltage signal respectively, after diode VD1-VD3 rectification, undertaken after signal handles by capacitor C 1-C3 filtering, the I/O port that is input to 2051 single-chip microcomputer IC1 respectively all is high level state, after 2051 single-chip microcomputer IC1 judge, do not send control signal.If in the threephase motor when any phase phase shortage or the phase failure, during as current sensor L1 phase shortage or the phase failure, L1 phase current transducer does not have voltage signal output, this moment, the 19th pin I/O end of 2051 single-chip microcomputer IC1 also was electronegative potential, after 2051 single-chip microcomputer IC1 judge, send control signal, first via output, by the 6th of ZM2410 radio receiving transmitting module IC2, the 10th of 7 ends and 2051 single-chip microcomputer IC1,11 ends are formed ZigBee radio-circuit 21, ZM2410 radio receiving transmitting module IC2 is the embedded serial ports transparent transmission of the Zigbee of built-in 2.4GHZ (some multiple spot and point-to-multipoint) communications protocol, supports aerial upgrade firmware or configuration far module information.Up to the output of the power of 7dBm and-receiving sensitivity of 100dBm, can satisfy telecommunication, send the AT instruction by 2051 single-chip microcomputer IC1 ZM2410 radio receiving transmitting module IC2 is realized wireless data transceiving, switch pin with the RS-485 direction, send current motor generation phase shortage or open phase fault warning message to data center, have simple, the advantages such as cost is low, wireless monitor of networking warning; Another road output, the 12nd pin output high level by 2051 single-chip microcomputer IC1 through resistance R 5 current limlitings, makes transistor Q1 conducting, and the motor load power supply is cut off in the relay K adhesive, is protection motor protection and the novel intelligent chemical control device of monitoring in one processed.
Above-described only is a preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented, and every equalization of doing according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.
Claims (5)
1. novel motor phase-lacking protective device; it is characterized in that: comprise current signal Acquisition Circuit (1) and microprocessor control circuit (2); the output signal of described current signal Acquisition Circuit (1) transfers to microprocessor control circuit (2) through current signal treatment circuit (11); the output signal of described microprocessor control circuit (2) is sent to ZigBee radio-circuit (21) and drive circuit (22), and the output signal of described ZigBee radio-circuit (21) sends to data processing centre (211).
2. novel motor phase-lacking protective device according to claim 1 is characterized in that: current sensor (L1, L2, L3) the collection current signal of described current signal Acquisition Circuit (1) employing connection threephase motor.
3. novel motor phase-lacking protective device according to claim 1 and 2 is characterized in that: current signal rectification, filtering, signal processing circuit that described microprocessor control circuit (2) constitutes for diode (VD1-VD3), resistance (R1-R3), electric capacity (C1-C3).
4. novel motor phase-lacking protective device according to claim 1 is characterized in that: described microprocessor control circuit (2) employing 2051 single-chip microcomputers (IC1).
5. novel motor phase-lacking protective device according to claim 1 is characterized in that: described ZigBee radio-circuit (21) employing ZM2410 radio receiving transmitting module (IC2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036939 CN203119451U (en) | 2013-01-18 | 2013-01-18 | Novel motor open-phase protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036939 CN203119451U (en) | 2013-01-18 | 2013-01-18 | Novel motor open-phase protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203119451U true CN203119451U (en) | 2013-08-07 |
Family
ID=48899768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320036939 Expired - Fee Related CN203119451U (en) | 2013-01-18 | 2013-01-18 | Novel motor open-phase protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203119451U (en) |
-
2013
- 2013-01-18 CN CN 201320036939 patent/CN203119451U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20150118 |
|
| EXPY | Termination of patent right or utility model |